Manual sharpening implement



y 1952 B. K. MuRcHlsoN 2,598,589

v MANUAL SHARPENING. IMPLEMENT Filed Sept; 29, 1950 2 SHEETSSHEET 1 I IHOME I INVENTOR. BLACKWELL K. MURCHISON ATTORNEY B. K. MURCHISON MANUALSHARPENING IMPLEMENT May 27, 1952 2 SHEET SSHEET 2 Filed Sept; 29, 1950ATTORNEY Patented May 27, 1952 MANUAL SHARPENING IMPLEMENT Blackwell K.Murchison, Brooklyn, N. Y., as-

signor, by mesne assignments, to Bessie F. Murchison, Brooklyn, N. Y.

Application September 29, 1950, Serial No. 187,387

This invention relates to new and useful improvements in manualsharpening implements.

The dominating object of this invention resides in the construction of amanual sharpening implement which has one set of spaced sharpeners and acooperative set of meshing guides, or meshing sharpeners, associatedwith means by which the sharpeners, or guides, may be moved to variousrelative positions so that portions of the sharpeners are exposed to useduring the use of the implement. With this construction it is possibleto change the meshing relation of the sharpeners, or sharpeners andguides, so that fresh portions of the sharpeners are exposed to use whendesired. The invention contemplates a simple and novel adjustment bywhich the sharpeners, or sharpeners and guides, may be adjusted asstated.

Another and important feature of this invention resides in replaceablymounting the sharpeners in position so that worn sharpeners may beremoved and replaced as required.

Another and important feature of this invention resides in providing thesharpeners with working faces which are arranged at selected angularpositions. In accordance with this invention the angles may vary from afew degrees upwards to 90 or more, if so desired. With this 7 Claims.(Cl. 51-214) construction the sharpening implement may be designed tosharpen knives, cleavers, scissors, razors, and many other articles.

Another object of this invention resides in providing the sharpeningimplement with one set of spaced sharpeners and meshing guides in thoseimplements intended to sharpen one face of an object at a time, and toprovide two sets of spaced meshing sharpeners in those implementsintended to sharpen two faces at a time.

It is also proposed that the sharpeners be constructed of various typesand kinds of sharpening materials containing various types and kinds ofgrits of various fineness or coarseness. This large selection of gritsmakes it possible to use the sharpening implement to grind, hone or inother ways condition the edges of articles to be sharpened or treated.More particularly, it is contemplated that each sharpening implement beprovided with different sharpening sec.- tions, one containingsharpeners suitable for grinding, and the other containing sharpenerssuitable for honing, or in other ways finishing or conditioning edges.

Still another object of this invention resides in embodying the meshmove principal of spaced and meshing sharpeners, or sharpeners andguides, into sharpening implements of various designs, as for example,implements having fingers grips, or having hand grips, or having morethan one finger or hand grip.

Another object of the invention is the construction of a device asdescribed which is simple and durable and which may be manufactured andsold at a reasonable cost.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a plan view of a manual sharpening implement constructed inaccordance with one form of this invention.

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1. I

Fig. 3 is an end view of Fig. 2 looking from the left hand end.

Fig. 4 is an end View of Fig. 2 looking from the right hand end.

Fig. 5 is a front elevational view of Fig. 2.

Fig. 6 is a front elevational view of another manual sharpeningimplement constructed in accordance with another form of this invention:

Fig. '7 is a fragmentary plan view looking in the direction of the line'l--'l of Fig. 6.

Fig. 8 is a front elevational view of still another manual sharpeningimplement embodying another form of this invention, one half of thisview being shown partly in section to disclose the interiorconstruction.

Fig. 9 is an end view of Fig. 8 looking from either end.

Fig. 10 is a fragmentary verticalsectional view taken on the line l0l0of Fig. 8.

The manual sharpening implement, as illustrated in Figs. 1-5 inclusive,includes a pair of members I0 and H slidably connected with each otherto move in a longitudinal line towards and away from each other. Thesemembers are slidably connected with each other by a stud .l2 which isfixedly attached to the member I0 by a pin l3 and which engages througha tubular bearing I 4 fixedly mounted on the member H. A plurality ofspaced sharpeners l5 are mounted on one of these members, for example,the member H. These sharpeners [5 are arranged in spaced positionsspaced transversely of the line of sliding of the members I0 and l l.A-plurality of guides I6, or other sharpeners. IE, are mount}:

knife engaging between the parts [5 and 23 in sharpening position. Whenthis knife H is moved back and forth across the parts i5 and 16 its edgewill be sharpened or honed, or conditioned, depending upon the nature ofthe parts I5 and I6, specifically, whether these parts are grindingelements, honing element, other conditioning elements, or guidingelements.

7 The members I8 and 5| are associated with means by which said membersmay be moved into selective positions towards and away from .eaeh otheralong the longitudinal line of sliding of the members it and H forcontrolling the sections of the sharpeners l5, or L5 and 45, en-

.gaged by an object such as the knife ii when the implement is beingused. Said means for moving said members IQ and II includes an expansionspring l9 coaxia-lly mountedon the stud 12,, and having its endsengaging in recesses 26 and 2| formed in-th-e adjacent faces of themembers-t0 and H. A nut 22 threadedly engages on the end of the stud l2and indirectly controls the compression of the spring 19. .A handle 23by which the implement may be conveniently handled is connected with themember ii. Studs 24 for connecting the handle 23 with the member H arefixedly mounted either on the member I l or on the handle .23 andslidably-engage in aligned.

openings either on the handle 23 or the member I], depending upon whichof' these parts the studs are fixedly mounted. The handle 23 has acutout 25. into which the nut 22 is set. The nut'22 acts against aportion of the handle 2% and in this way moves the member H towards themember l0, when the nut is turned in one direction, or permits thespring 19 to move the member ll away from the member Iii when the nut 22is turned in the other direction. a 1 The members H3 and H are ofidentical shape, each having a wide section '25 anda narrow section 25These sections extend from the centers of the members outwards. However,the members id and H are turned-so that the wide section 25 of themember if! is at the topand is opposed to the narrow section 26 of themember I I. The wide section 25 of member His provided with a pair ofprojecting studs-2i which engage against the sides of the narrow section25 of the member l!) to hold the members 'I 8 and II from pivoting onthe stud 12 as an axis. In the particular sharpening implementillustrated the. Wide sections 25 are provided with two of thesharpenersor N, while the narrow sections, 26 are provided with one of thesharpeners tier [6, These partsl5 and IE mesh with each other asmay benoted by examining Figs. 1. .2 and 5.

The parts is and it are removably mounted on the members H and at. Morespecifically, the members H and It are formed with grooves 28 into whichthe parts l5 and I6 are set. Small screws 2-9 threadedly engage themembers i0 and It and extend into the grooves 28 and against enact theedges of the parts I5 and 5 'for clamping-these parts against the othersides of the grooves 28. The screws 29 thus serve to releas- 4 ably holdthe parts l5 and IS in position. When these parts become worn they maybe removed and replaced. The handle '23 is provided at the top with theword Grind, indicated by reference numeral 38, and at the bottom withthe word Hone, indicated by numeral 3|. These legends indicate thenature of the sharpeners l5 and H5. The sharpeners adjacent the legend.Grind contain coarse grit so that they grind an object engaged againstthese sharpeners, while the sharpeners adjacent the legend Hone contain,fine grit so that they hone or condition an object engaged againstthem.

The operation of the device may be under stood from the following:

The implement is held by the handle 23. This handle 23 is relativelysmall so as to be capable of being held by the fingers. A knife or otherobject to be sharpened is merely moved back and forth between theadjacent faces of the sharpeners liand L6, or the adjacent faces of thesharpeners l5 and the-guides 1.6 in the event-that the parts 15 areguides and not sharpening :elements. The parts I5and it have adjacentfaces which are .at fixed angular positions relative to each other.angle of the bevel .of the knife .or other object which is to .besharpened. It is proposed that the sharpening implements be providedwith parts l5 and 15 of selected angular positions. Thus one maypurchase an implement with the sharpeners l5 and I5 .at anangular'posit-ion for sharpening knives. Or .an implement may bepurchased with the angular position for sharp,- .ening cleavers.Sharpeners may also be .provided with an implement, to be replaced forthe parts l5 and 16 for providing difierent angles of sharpening. Theseangles may vary from a few degrees for razors to very wide angles forcleavers and other objects.

It. should be noted by examining Fig- 2 that the knife I! engages. thesharpeners 1'5 and 16 at the junction between their crossing faces. Whenthis junction becomes rutted. after some use it is merely necessary thatthe adjustment nut 22 be turned in one direction or the other soas tomove the sharpeners l5 and .15 together or apart so' as to change'thejunction between these sharpeners so that new sections of the sharpenersare now available for use. The adjustment nut 22 .may be controlled sothat the entire working surfaces of the sharpeners *[5 and I6, areutilized at one time or another during the use of the implement. Whenthe sharpeners-l5 and it become thoroughly worn they .are replaced.

'InjF'igs. 6 and '7 a modified form of, the invention has been disclosedwhich distinguishes from the prior form in several ways, particularly,this implement is. provided with a hand grip by which it may be. grippedand handled. \One end of. thisv hand grip is provided with the membersl6 and. H. These 19 and H members. are associated with the other partsas shown iniFigs. 1-5 inclusive. The operation of this sharpeningimplement is identical to the prior form.

The, other end of the handle 35 is provided with an implement of .asomewhat different construction. This construction includes a pair ofmembers 35 and 31's1idably connected with eachfother to move in alongitudinal. line towards and away from each other. One end of thehandle 351s connected with the member 35.. This is accomplished by studs38 mounted eitherupon the handie 35 or on the member 35 for engagingQRBi1- ings in the other adjacent part. The members These angularpositions control the 36 and 31 are slidably connected with each otherby studs 39 which are mounted on one of these members and engage incomplementary openings in the other of these members to control thelongitudinal sliding thereof. mounted on the member 31 by a pin 4| andengages through the member 36 and through a bearing 42 fixedly mountedon the member 36. This stud 46 also extends through the handle 35. Stud46 is provided with an adjustment nut 43 which threadedly engages on theend portion of the stud 46. An expansion spring is coaxially mounted onsaid stud 46 and acts between the adjacent faces of the members 36 and31 for urging them apart. sharpeners 45 are mounted on one of saidmembers, namely, the member 31. These sharpeners are spaced transverselyof the lineof sliding of the members 36 and 31. Guides 46 are mounted orfixed upon the other of said members, namely,

the member 36 and engage in the spaces between the sharpeners 45 forguiding an object to be sharpened across sections of the sharpeners 45.The sharpeners 45 are mounted in grooves 41 formed in the member 31.Screws 4B threadedly engage the member 31 and engage one of the ends ofthe sharpeners 45 for releasably holding the sharpeners in position. Thesharpeners may therefore be removed and replaced when they become worn.

The sharpeners 45 have working faces at a selected angle. For example,this angle may be such as to coincide with the angle on the blades of apair of scissors. The dot and dash lines 56', in Fig. 6, indicate one ofthe blades of a pair of scissors engaged against the top sharpeners 45.The beveled edge of the blade 56 engages the sharpeners 45, while thestraight side of the blade engages the end of the guide 46. The scissorblade 56 may be drawn back and forth over the sharpeners 45 forsharpening or conditioning the edge of the scissor blade. The handle 35is imprinted with legends Grind and "Hone at the corners to indicatewhether the adjacent sharpeners are for grinding or honing.

The operation and use of the above sharpening implement may beunderstood from the following:

Knives, cleavers and other similar articles may be ground, honed andconditioned upon the sharpening implement on the left end of the handle35. Scissors and other similar objects may be ground, honed, andconditioned on the sharpening implement on the right hand end of thehandle 35. The adjustment nuts 22 and 43 may be turned in one directionor the other to vary the sections of the sharpeners engaged by theobjects during the sharpening or conditioning operation. In otherrespects the operation of this form of the invention is identical to theprior form.

In Figs. 8-10 inclusive another form of the invention has been disclosedwhich distinguishes from the prior forms merely in construction. Theoperation and use of this implement is substan tially the same as in theother forms. This implement includes a pair of members 56 and 5|slidably connected with each other to move in a longitudinal linetowards and away from each other. A rod 52 is engaged through thesemembers. This rod has a central square section 53 which engages squareopenings 54 in the members 50 and 5| by which the members 56 and 5|areslidably connected in a non-rotative manner. A handle 55 is connectedwith each of the mem- A stud 46 is fixedly A plurality of spaced bers 56and 5|. These handles 55 are in the form of tubes through which the endsof the rod 52 pass. A plurality of spacedsharpeners 56 are mounted onthe members 56 and 5|. These sharpeners are spaced transversely of theline of sliding of the members 56 and 5|. The sharpeners 56 on one orthe other of the members 56 and 5| may be replaced with parts ofidentical shape but comprising guides.

The members 56 and 5| are associated with means by which they may bemoved towards and away from each other along their longitudinal line ofsliding for controlling the degree of meshing of the sharpeners 56 ofthe members 56 and 5|. This means includes an expansion spring 51mounted on the square section 53 of the rod 52 between the adjacentfaces of the members 56' and 5|. The ends of the rod 52 are formed withthreads 58. Nuts 59 are rotatively mounted on the ends of the tubularhandles 55 andthreadedly engage the threads 58. One or both of the nuts59 may be turned for forcing the members 56 and 5| towards each other,or for permitting the expansion spring 51 to separate the members 56 and5|. 1

The sharpeners 56 are mounted in grooves 60 formed in the adjacent facesof the members '56 and 5|. Small screws 6| are mounted on the members 56and 5| and engage the ends of the sharpeners 56 for releasably holdingthem in position. The members 56 and- 5| are imprinted with the wordsGrind and Hone (see Fig. 9) to indicate the nature of the adjacentsharpeners 56.

The operation of this implement may be understood from the following:

A knife or cleaver or other object to be sharpened is moved back andforth between the angular faces of the sharpeners 56 as seen in Fig. 8.When the working portions of these faces become worn the nuts 59 may beturned so as to move the members 56 and 5| either together or apart, andin this way change the junctions of the working faces of the sharpeners56.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to al1changes and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by United States Letters Patent is:

1. A sharpening implement, comprising a pair of spaced members having ontheir adjacent faces a plurality of meshing sharpeners and guidespositioned above and below the centers of said members, a stud mountedat right angles through said members and at one end connected with oneof said members, a nut threadedly engaging on said stud and selectivelycontrolling the distance that said spaced members may move part forproviding relative unyielding positions of mesh of said sharpeners andguides, and resilient means urging said members apart into saidunyielding positions of mesh.

2. A sharpening implement, comprising a pair of spaced members having ontheir adjacent faces a plurality of meshing sharpeners and guidespositioned above and. below the centers of said members and said meshingsharpeners and guides having adjacent working surfaces diverging in thedirection which extends from the centers of said members radiallyoutwards, a stud attached one end to theeenterof one of said members andextending :aztc ri-ght angles to said members vandsslidaibly "passingthrough the center of the other of said members so that said members maymove-in .a longitudinal line towards and away fromeeach other, and a nutxthreadedly engaging on; .said .stud :and. selectively controlling the;distance thatsaid spaced members may move apart for providing relative.unyielding positions .of mesh; of said :sharpeners and guides .3.:Ausharpening; implement, comprising a pair otspaiced members having onthillfidj acentviaces a plurality of meshingrsharpeners and guidespositioned above and below the centers of said members: andgsaidtmeshing sharpener andguides having adiacent working surfacesdiverging in the direction winch extends from the acefltelS .ofsaidznembers radially outwards; a .stud attached at one end-to thecenter of one .of said members and-extending at right angles to saidmembers and slidably passing through the ,center :oi the "otherof saidmembers so that said members may more in a longitudinal line towards:and away 4. A sharpening implement as defined in claim 0 Number 8 3, inwhich pinsengage :said-ihandle .and the adjacent one of said membersiior holding said handle from turning about said :stud.

5. A sharpening implementaas definedriniclaim 2,111 which tpins engagesaid members iorrholding them from turning relative to each anther.

6. A sharpening implement as definedin claim .3, in which a tubularbearingis-mounted on one of said members and engages in an opening insaid handle, and said stud passes through said tubular bearing. r

7. A sharpening implement-as defined in clalim -1, in which said stud:has a square section upon which said members are slidably mounted.

BLACKWEIL K. MURCI-IISON.

REFERENCES 'GIT ED Country Date The Netherlands. Feb. 15,1933

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